In 1984 we established permanent vegetation plots at the soil sampling sites, and we measured the trees again in 2004. In spruce-fir plots, there was a large (35%), statistically significant reduction in live red spruce basal area between 1984 and 2004, and in the northern hardwood plots, a significant reduction in sugar maple sapling density. Both of those species are known to be adversely affected by low soil Ca levels.
" />
In 1984 we established permanent vegetation plots at the soil sampling sites, and we measured the trees again in 2004. In spruce-fir plots, there was a large (35%), statistically significant reduction in live red spruce basal area between 1984 and 2004, and in the northern hardwood plots, a significant reduction in sugar maple sapling density. Both of those species are known to be adversely affected by low soil Ca levels.
" />
In 1984 we established permanent vegetation plots at the soil sampling sites, and we measured the trees again in 2004. In spruce-fir plots, there was a large (35%), statistically significant reduction in live red spruce basal area between 1984 and 2004, and in the northern hardwood plots, a significant reduction in sugar maple sapling density. Both of those species are known to be adversely affected by low soil Ca levels.
" />
In 1984 we established permanent vegetation plots at the soil sampling sites, and we measured the trees again in 2004. In spruce-fir plots, there was a large (35%), statistically significant reduction in live red spruce basal area between 1984 and 2004, and in the northern hardwood plots, a significant reduction in sugar maple sapling density. Both of those species are known to be adversely affected by low soil Ca levels.
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